Hemp battery

[dieter]

Just tried to find a thread by looking into the battery section, surprisingly none found.


I would really like to try that, it seems doable.
Seemingly hemp is like ten times better than Lithium-Ion, and several times even than Graphene.


Supercaps are they, as they load quicker than anything else.


Google it up or something.


Has anybody tried that, beside Murray, who refers to "it's all over the web" when it comes to Howto, which is slightly exaggerated.


Anyway, rexresearch has a file on it, too.

[sm0ky2]

The plant fibers are electrically conductive
They are heat treated in a process similar to making
"char-cloth"
The resulting carbon lattice is used as both electrodes
of a battery using your choice of electrolyte.


The exponential higher surface area, when compared to
metal electrodes of the same size, gives these batteries
a longer run time, shorter charge time, and their ability
to absorb combines to create energy densities (Ahr/g)
better than any other battery we have today.

[sm0ky2]

The exact process:


Bast fibers come from the inner layer of bark
Just before you get to the woody pulp material.
These fibers are sealed and heated for 24 hrs
Held at a temp at or just above 350 degrees.


This can be as simple as placing them in an altoids
can in a bed of coals. (Actually any plant fibers can
be processed in this manner to create carbaceous cloth)


Electrodes are usually made in a more controlled way, like
in an oven, to control variables. But the process is quite simple.

[ramset]

Sm0ky
Quote
Bast fibers come from the inner layer of bark    ---->   @Edit corrected best to Bast as Smoky writes below
Just before you get to the woody pulp material.
end quote

is there a species of hemp which has no legal issues attached to it ?

*although we could probably get the discarded waste from Growers who
are mostly harvesting for "medicine" [THC].

would seem a simple process to experiment with ,just wish to avoid legal issues here in USA

[sm0ky2]

"Bast" not best
Bast is the type of plant fiber
It's the inner most bark fibers




"Hemp" is different from the weed people get high from.
As such it has a whole other set of legal issues.
The US recently started allowing production again
We used to be the worlds largest hemp producer
The army made ropes with the stuff. There are several
Out of use hemp farms across the US, where the plant still
grows wildly.